Feed bar and pen point



1932- s. M. sAGER 1,885,862

FEED BAR AND PE'N POINT Filed June 29, 1931 Patented Nov. 1, 1932SOLOMON M. SAGER, F GLENCOE, ILLINOIS rnnnran AND Pun rornrr Applicationfiled June 29,

In the construction of various makes of fountain pens it has heretoforebeen the prac tice of providing feeders or feed bars having ink 'feedpassages or grooves extending longitudinally' in the top surfacethereof. In the majority of the earlier types of fountain pens the feedbars are mounte'd in the sections with pen points, the shanks of whichare engaged over or seated upon the longitudinally grooved upperportions of the feed bars and are inserted into the ends of the fountainpen sections to be held in position by friction. It has been found inthe early types of fountain pens that by merely seats ing the pen pointupon a section that the pen point'must be engaged in position by anexpert and after being mounted very often is moved with respect to thefeed bar so that the pen point willnot write properly. In the earliertypes of fountain pens the pen point and feed bar are entirely separatepieces so that when the same are removed from the fountain pen sectionthe pen point no'lon er remains associated with the feed bar. fn orderthat the early types of pen points may have the shank portions thereofengaged over the feed bars it has been necessary to provide enlarged penpoint shanks thereby making it necessary to use considerable amount ofgold in the construction of pen points. I The present inventionrelatesto an im-' proved fountain penfeedbar and pen point position within afountain pen section with said feed bar being provided with a groovedrecess for the definite reception of the 'reduced shank end of a penpoint to positively hold the pen point in a predetermined position withrespect to the feed bar and in interfitting relation thereto to hold thefeed bar and pen point interiitting one another and adapted to remainassociated with one 5 another as a unit when removed from the fountainpen section.

It is an object of this invention to provide a cdmbination feed bar andpen point unit wherein the feed bar is recessed and grooved to removablyreceive a pen point, the shank portion of which is reduced in size toprounit adapted to be removably threaded into 1931. Serial No. 547,549.

vide a pen point of reducedweight and requiring less material affordinga considerable saving in the amount of 'gold required without impairingthe quality or serviceability of the penpoint.

It is also an object of this invention to provide an improved fountainpen feed bar with a grooved recess shapedcomplementally to the shape ofa fountain pen point shank to receive the pen point shank .in apredetermined seated position engaged in the grooves of the'recess'tohold the feed bar and pen point associated with one another as a uniteven whensaid parts are removed from the fountain pen section.

A further object of the invention is to provide a. fountain pen feed barwith a grooved recess shaped to receive a pen point shaped to afford aconsiderable saving in the amount of gold required without interferingwith the tip end of the pen point. v I

It is furthermorean object of this .invention to provide a fountain penhaving the feed bar so constructed that the shank end of the pen pointmay be of substantially minimum. size to reduce the amount of gold orprecious metal used in the construction of the pen point, making itpossible to produce fountains pens at a considerable saving in costand apositive association of the pen point with the feed bar to holdfthe penpoint and feed bar definitelypositioned with respect to one another. 7

. Another objectof the invention is to p'rovide a fountain pen feed barprovided with 85 a grooved recess to removably receive the reduced shankend ofa pen point ininterfitting engagement therewith permitting theshank and pen point to be mounted as a unit by threading the exteriorlythreaded shank end of the feed bar into an internally thread: ed recessprovided in the fountain pen sec-r tion. a

It is an important object of this invention to provide an eXteriorlythreaded fountain pen feed bar having a grooved recess provided thereinwhich is so shaped that the pen point may be so shaped that aconsiderable saving in the amount of gold or precious 100 metal requiredfor the penpoint is materially reduced, permitting fountain pens to bemanufactured at a considerable saving in cost and with increasedadvantages in the positive assemblage of the pen point with respect tothe feed bar positively holding the tip of the pen point properlyaligned with the ink feed grooves of the feed bar.

Other and further important objects of this invention will be apparentfrom the disclosures in the specification and the accompanying drawing.

The invention (in a preferred form) is illustrated in the drawing andhereinafter more fully described.

On the drawing:

Figure 1 is an enlarged longitudinal section of the writing end of afountain pen having an improved feed bar and pen point embodying. theprinciples of this invention engaged in the section end of the fountainpen barrel.

Figure 2 is a top plan view of the feed bar removed from the fountainpen.

Figure 3 is a longitudinal section of the feed bar taken on line IIIIIIof Figure, 2.

Figure 4 is an. enlarged transverse detail section of the feed bar andpen point. taken on line IVIV of Figure 1 with the cap omitted. V

Figure 5 is. a planview of the improved pen point removed from the feedbar.

As shown on the drawing;

The reference numeral 1 indicates a'fountain pen barrel, one end ofwhich is tapered to form an integral section2. The barrel 1 is providedwith an ink chamber 3 which communicates with anaxial passage 4 pro-Vided in the Section end 2 of the barrel. In the present showing of thefountain pen, the same is provided with a plunger filling mechanismdesignated as a whole by the reference numeral 5 The outer end of thesection 2 is provided with an eX ension sleeve or collar 6 which servesas an ink guard member and is integrally formed on the outer end of thebody sectionto the outside of a bead or flange 7. The head or flange 7is integrally formed externally on the outer end portion of thesection-2 and serves to separate the section and the ink guard 6. Theink guard sleeve or collar 6 has the end thereof shaped or formed toprovide an innerbeveled end surface 8, the inner end of which terminatesat the outer end of an internally threaded portion 9 provided in the inkguard. For enclosing the writing end of the fountain pen a oneipiece orunitary cap '10 is provided.

The cap 10 has an inner chamber 11 for re ceiving the outer end of thefountain pen feed bar and pen point. The outer end of the cap 10 isclosed while the opposite or inner end is provided with an exteriortapered or beveled surface 12, the outer end of .which terminates at theinner end of a reduced externallythreaded shank portion or collar 13.

the cap having threaded engagement With the interiorly threaded portion9 of the ink guard. The cap is threaded into the ink guard until thebeveled surface 8 of the ink guard is contacted by the beveled surface12 of the cap to provide a non-leakable joint s between the ink guardand the cap.

The present invention relates more particularly to an improved feedbarand pen point unit which is adapted to be removably engaged in aninternally threaded portion 14 provided within the fountain pen section2 as clearly illustrated in Figure 1. p The writ ing unit comprises afeed bar 15having an integral shank 16 the end portion of which isexternally threaded at 17 to permit the feed bar when projected throughthe ink guard 6 and into the section 2 to be removably engaged bythreading the portion 17 into the threaded portion 14 of the section.The feed baris provided with an ink intake and dis charge passage 18which extends longitudi nally through the feed bar from the outer end tothe inner end where the passage flares out to provide a conical recess19. The feed bar is provided in the 'top surface thereof with alongitudinally directed ink feed or supply passage or grooves 20 whichextend from the tip of the feed bar tothe end of the threaded shanksection 17.. The feed passage 20.may be of the customary compound groovetype formed by one or more longitudinally disposed ribs or ridges toafford an arrangement whereby the supply of ink may be smoothly andevenly fed to the outer end of the feed bar and to the fountain penpoint. l

As clearly illustrated in Figure 2, the improved feed bar has the topsurface' thereof provided with a pen point receiving recess, socket orpocket comprising an outer enlarged tip recess 21 and a shank recess 22which extends from the recess 21 along the top of the feed bar up tothethreaded portion 17 of the feed bar. The edges 23 and 24 are undercut toprovidereceiving grooves 25 and 26 for receiving the .edges of a penpoint shank as hereinafter more fully described.

' The feed bar is provided with the pen point receiving recess or socketand has the edges forming said recess or pocket grooved or undercut'toprovide suitable guide grooves for receiving edges of the body and shankpor-,

tions of an improved type ofpen point seated therein for the purpose ofholding the pen point removably seated or locked in engagement with thefeed'bar so that the two mem bers are adapted to be maintained inassociated relation to form a unit which when pen point adapted to beconstructed of gold or other precious metal which will withstand theaction of writing ink. With the improved feed bar provided with the penpoint receiving recess or pocket it is possible to provide a pen pointwhich will require materially less gold or metal, thereby providing apen point of lighter weight and less expense due to the saving in theamount of gold required in the construction of the shank portion of theimproved pen point; As clearly illustrated in Figure 5, the pen pointcomprises a head or body portion 27, the front end of which is taperedand longitudinally split to provide the customary writing tip or nib 28.The rear portion of the body or head 27 of the pen point is:

tapered or reduced in size to provide shoulders or edges 29 which areshaped complementally to the shape of the feed bar end recesses orgrooves 25 to permit the shoulders of thehead portion of the pen pointto seat in the grooves 25 when the pen point is in po sition. Integrallyformed on the rear end of the pen point head 27 is a stem or shank 30which is narrow or of reduced width to fit in the shank recess 22 of thefeed bar with the longitudinal or side edges of the'pen point shank 30slidably engaged in the side grooves 26 forming part of the pen pointreceiving recess of the feed bar. I

By providing the feed bar with the grooved pen point receiving recess21'-22 a pen point may be provided having a shank or stem which is ofsmall size, thereby greatly reducing the amount of gold or preciousmetal required in the construction of the pen point. This novelarrangement permits gold .pen points to be provided at a considerablesaving in cost without interfering with the writing qualities of the tipor nib 28 of the pen point.

The pen point receiving recess provided in the top surface of the feedbar is shaped complementally to the shape of the shank and rear portionof the head of the pen point so that'the pen point may be removablyengaged in the feed bar recess or pocket 2122 with the longitudinaledges of the shank portion 30 of the pen point and the rear edges orshoulders 29 of the pen point head 27 seated in the grooves 26 and 25respectively provided in the feed bar. This arrangement of theinteriitting relationship between the feed bar and the pen point permitsthe pen point to be positively positioned in a predetermined setposition of adjustment with respect to the feed bar to insure perfectwriting with the tip or nib 28 of the pen point.

he interfitting or interlocking engagement between the feed bar and thepen point furthermore affords an arrangement whereby a pen point may becorrectly mounted in position by any inexperienced person withoutrequiring the services of an expert. The

grooved'recess provided in the feed bar furthermore holds the penpointwhen in position vfrom sliding or moving peripherally around the feedbar to. misplace the nib or tip of the pen point with respect to the inkfeed teriorly threadedshank 17 of the feed bar permits the'feedbar unitincluding the feed bar and'the pen point .to be removably en: gaged inthe interiorly threaded section 2 of the fountain pen barrel. With thepen point seated in interfitting engagement with 5 the recessed feed barthe shank end of thefeed bar is projected through the ink guard 6 andinto the section passage & after which the feed bar is rotated to causethe threaded shank 17 to thread into the interiorly threaded portion 14:of the section 2 to hold the feed bar and the penpoint properlypositioned with the pen point locked in place against accidentalmisplacement or shifting with respect'to the feed bar.

It will of course be understood that various details of construction maybe varied through a wide range without departing from the principles ofthis invention, and it is therefore not the purpose to limit the patentgranted hereon otherwise than necessitated by the scope of the appendedclaims.

I claim as my invention:

1. A fountain pen feed unit comprising a feed bar having an externallythreaded shank integrally formed on one end thereof, said feed barhaving a pen point receiving recess formed therein with the marginsbounding the recess grooved to provide overhanging flanges, and a penpoint slidably engaged in the feed bar recess with the body portion ofthe pen point shaped complementally to the shape of the feed bar recesswith margins of the pen point engaged beneath the flanges to hold thepen point frictionally interfitting the feed bar.

2. A fountain pen feed unit comprising a.

feed bar having a passage and ink feed grooves therein, said feed'baralso having a pen point receiving recess therein and a plurality ofguide grooves forming flanges overhanging said recess, and a pen pointhaving the shank portion thereof shaped complementally to the shape of aportion of said recess to permit the shank portion of the fountain pento seat in said recess and project into said grooves beneath the flangesto hold the pen point in interfitting engagement with the feed bar. 7 v

3. The combination with a pen feed bar having a pen receiving recessformed therein with said recess provided with a grooved narrowextension, of a pen point comprising a body portion, a nib integrallyformed on one'end thereof and a narrow shankintegrally formed on theopposite end thereof, said pen point seated in said recess with thenarrow shank of the pen point projecting into the grooved extension ofthe recess.

4. The combination with an ,exteriorly threaded pen fee-d bar havingpassages and grooves therein, said feed bar also having a grooved recesstherein a'portion-of Which is restricted in Width, and a pen pointseated in the feed bar recess, said pen point having an elongated narrowshank adapted to project into the restricted portion of the feed barrecess to hold the pen point secured in interfitting engagement with thefeed bar.

In testimony whereof I have hereunto suh scribed my name at Chicago,Cook County, T

Illinois.

SOLOMON M. SAGER.

